Abstract

This paper presents the results of a comprehensive analysis of measurements of CO total content (CO TC) at stations of the Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences (IAP RAS), in Moscow and Moscow oblast. Also CO in-situ data obtained from automated stations of the Mosecomonitoring network, satellite monitoring results and information on the parameters of the atmospheric boundary layer in Moscow and the surrounding regions are analyzed. The long-term variability of CO TC and meteorological parameters is investigated, the carbon monoxide accumulation characteristics in calm days in the atmospheric boundary layer are obtained. A decrease in the average annual values ​​of TC CO in 2000–2018 was found in Moscow (–2.56 ± 0.52%/year) and at the Zvenigorod Scientific Station (ZSS) (‒1.15 ± 0.37%/year). However, the rate of decrease in both sites is different in different seasons and periods. After about 2007–2008, the rate of CO TC reduction decreased at both sites. In 2008–2018, at the ZSS, an increase in CO TC was recorded in the summer and autumn months at a rate of about 0.7%/year. An increase in the wind speed in the atmospheric boundary layer of Moscow in different periods of 2000–2018 at a rate of 0.4–1.6%/year has been determined. At the same time, no statistically significant changes in wind speed were found in Kaluga oblast. The recurrence of calm days in Moscow in 2006–2017 decreased (–7.06 ± 3.96%/year) with a decrease in the anthropogenic part of the CO content in the same period (–6.72 ± 3.48%/year). The results indicate the influence of the climatic (meteorological) factor on air quality in Moscow.

中文翻译：

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莫斯科大都市大气中一氧化碳的长期趋势

摘要

本文介绍了在莫斯科和莫斯科州的俄罗斯科学院奥布霍夫大气物理研究所（IAP RAS）站对CO总含量（CO TC）进行测量的综合分析结果。还分析了从Mosecomonitoring网络的自动化站获得的CO现场数据，卫星监测结果以及有关莫斯科及周边地区大气边界层参数的信息。研究了CO TC和气象参数的长期变化，获得了大气边界层在平静天的一氧化碳累积特征。在莫斯科（–2.56±0.52％/年）和Zvenigorod科学站（ZSS）（‒1.15±0.37％/年），发现2000–2018年TC CO的年均值下降。然而，两个站点的减少率在不同的季节和时期是不同的。在大约2007–2008年之后，两个站点的CO TC减少率均下降。在2008-2018年，ZSS的夏季和秋季月份的CO TC记录以每年约0.7％的速度增长。已确定在2000–2018年的不同时期内，莫斯科大气边界层的风速以每年0.4–1.6％的速度增加。同时，在卡卢加州没有发现风速的统计显着变化。2006-2017年，莫斯科的平静日复发率下降了（–7.06±3.96％/年），而同期的人为二氧化碳含量下降了（–6.72±3.48％/年）。结果表明，气候（气象）因素对莫斯科空气质量的影响。